build: add exports for a simple query flow

PG protocol run queries by calling dispatch_query, which stores the
response in port_c contained in box_function_ctx structure.

NO_DOC=exports
NO_CHANGELOG=exports
NO_TEST=exports

extra/exports

@@ -647,3 +647,4 @@ coio_write_timeout
 fiber_set_name_n
 authenticate
 user_auth_method_name
+port_c_create

src/CMakeLists.txt

@@ -279,6 +279,9 @@ set(api_headers
     ${PROJECT_SOURCE_DIR}/src/box/decimal.h
     ${PROJECT_SOURCE_DIR}/src/lua/decimal.h
     ${PROJECT_SOURCE_DIR}/src/lib/core/random.h
+    ${PROJECT_SOURCE_DIR}/src/lib/core/port.h
+    ${PROJECT_SOURCE_DIR}/src/box/port.h
+    ${PROJECT_SOURCE_DIR}/src/box/module_cache.h
     ${EXTRA_API_HEADERS}
 )
 rebuild_module_api(${api_headers})

src/box/module_cache.h

@@ -18,12 +18,16 @@ extern "C" {
  * API of C stored function.
  */
 
+/** \cond public */
+
 struct port;
 
 struct box_function_ctx {
 	struct port *port;
 };
 
+/** \endcond public */
+
 typedef struct box_function_ctx box_function_ctx_t;
 typedef int (*box_function_t)(box_function_ctx_t *ctx,
 			      const char *args,

src/box/port.h

@@ -107,6 +107,8 @@ void
 port_vdbemem_create(struct port *base, struct sql_value *mem,
 		    uint32_t mem_count);
 
+/** \cond public */
+
 struct port_c_entry {
 	struct port_c_entry *next;
 	union {
@@ -148,6 +150,8 @@ static_assert(sizeof(struct port_c) <= sizeof(struct port),
 void
 port_c_create(struct port *base);
 
+/** \endcond public */
+
 /** Append a tuple to the port. Tuple is referenced. */
 int
 port_c_add_tuple(struct port *port, struct tuple *tuple);

src/lib/core/port.h

@@ -37,6 +37,8 @@
 extern "C" {
 #endif /* defined(__cplusplus) */
 
+/** \cond public */
+
 struct obuf;
 struct lua_State;
 struct port;
@@ -131,6 +133,8 @@ struct port {
 void
 port_destroy(struct port *port);
 
+/** \endcond public */
+
 static inline int
 port_dump_msgpack(struct port *port, struct obuf *out)
 {
@@ -155,12 +159,16 @@ port_dump_plain(struct port *port, uint32_t *size)
 	return port->vtab->dump_plain(port, size);
 }
 
+/** \cond public */
+
 static inline const char *
 port_get_msgpack(struct port *port, uint32_t *size)
 {
 	return port->vtab->get_msgpack(port, size);
 }
 
+/** \endcond public */
+
 static inline struct sql_value *
 port_get_vdbemem(struct port *port, uint32_t *size)
 {

src/trivia/util.h

@@ -734,10 +734,14 @@ strtolower(char *s);
 char *
 strtolowerdup(const char *s);
 
+/** \cond public */
+
 #if !defined(__cplusplus) && !defined(static_assert)
 # define static_assert _Static_assert
 #endif
 
+/** \endcond public */
+
 /** Asserts that a global variable has a given type. */
 #define STATIC_ASSERT_VAR_TYPE(var, type)				\
 MAYBE_UNUSED static inline void						\